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Silica
mineral · 16 active deals
How much does Silica cost?
The best-value Silica right now is about $0.08 per dose — across the 13 we can price per dose the median is $0.201/dose, so shopping on cost-per-dose can cut your cost several-fold. Every Silica deal here is ranked by cost per dose — what you actually pay per serving, not the sticker price — because forms and absorption differ, so the cheapest bottle isn’t always the cheapest dose.
Prices checked · live from the Amazon US catalog.
Right now the best value across our full Silica catalog is at $0.08 per serving.
Median $0.201/servingCheapest quartile under $0.113across 13 tracked Silica deals
Goals:
What Silica does
Silicon is the third most abundant trace element in the body; its bioavailable form, orthosilicic acid, is described in a peer-reviewed review as "important for optimal synthesis of collagen and for activating the hydroxylation enzymes," which is the rationale behind marketing it for hair, skin and nails. The same review is candid about the evidence: it reports "positive results" for hair and "significant improvement in the fragility of nails" in the studies it covers, but immediately adds that "clinical studies evaluating safety and efficacy are still lacking" and that there are "few studies" with proper design and long follow-up. Researchers do not even agree that silicon is an essential element for humans. — per a peer-reviewed review (NIH PMC); not medical advice.
Forms & absorption
The catalog mixes two things labelled differently, which is why we rank silica by cost per serving rather than per milligram: choline-stabilized orthosilicic acid (ch-OSA, sold as BioSil) is dosed by elemental silicon — studies used about 10 mg silicon/day — while bamboo-extract products state milligrams of silica extract, a much larger number for a different quantity. Comparing those two on a single per-milligram figure would be misleading, so we don't.
What the evidence shows for Silica
The review reports "positive results" for hair strength and "significant improvement in the fragility of nails" in the studies it covers, but states plainly that "clinical studies evaluating safety and efficacy are still lacking" and that "there are few studies" with proper design, large samples and long follow-up. Treat any beauty benefit as preliminary. — per a peer-reviewed review (NIH PMC); not medical advice.
Food sources of Silica
Silicon is the third most abundant trace element in the body and is obtained from the diet (whole grains, some vegetables and drinking water are common dietary sources); a peer-reviewed review notes that orthosilicic acid is "important for optimal synthesis of collagen and for activating the hydroxylation enzymes." The review also states there is "still no consensus among researchers" that silicon is an essential element for humans. — per a peer-reviewed review (NIH PMC).
Can you get too much Silica?
Per the review, choline-stabilized orthosilicic acid (ch-OSA) "does not present risks for safety" at the doses used in supplements, provided the choline maximum of 3.5 g/day is not exceeded, and a small 4-week trial of another form reported no adverse events. The authors flag a separate concern about nano-silica particles used in some products, for which "concerns regarding the safety have been reported." — per a peer-reviewed review (NIH PMC); not medical advice.
WAY 4 ORGANIC W4O Bamboo Extract Capsules 500 mg – 70% Silica
WAY 4 ORGANIC W4OAmazon.com
$0.08/serving
$27.990°
WAY 4 ORGANIC W4O Bamboo Extract Capsules 500 mg – 70% Silica
WAY 4 ORGANIC W4OAmazon.com
$0.08/serving
$14.990°
SOLARAY Bamboo Silica Supplement for Men & Women - Bamboo Stem…
SolarayAmazon.com
$0.32/serving
$19.290°
Double Strength Silica Complex – 500mg Horsetail Extract (4:1)…
pureclinicaAmazon.com
$0.42/serving
$37.990°
Every Silica deal above is ranked by real cost per dose with no paid placement — see our and .
Independent testing
Independent third-party testing is a voluntary check of a product's identity, potency and contaminants by an outside lab. It's a quality signal, not a value or efficacy claim. Confirm any brand's current status on the official registries:
Testing status is self-reported by the brand or drawn from public certification and may change — always verify on the official registry before purchase.
Silica deals — FAQ
- How much does Silica cost?
The cheapest silica we track works out to $0.08 , against a typical $0.20 across the 13 we can price per dose — about $2.33 a month at the cheapest. That is real from live Amazon US prices, not the sticker price. The full ranking is on the Best Silica page.
- What is the best-value Silica per dose?
WAY 4 ORGANIC W4O Bamboo Extract 500 mg – 70% Silica at $0.08 — the lowest cost-per-dose silica in our catalog. See the full ranking on the Best Silica page.
- How many Silica deals are live right now?
We're tracking 16 active Silica deals across Amazon US and partner retailers, ranked by community votes and cost-per-dose — not paid placement.
- What's a good price for Silica per dose?
Across the 13 Silica deals we can price per dose (combination products are left out — their single label dose belongs to whichever ingredient the product is built around) the median cost-per-dose is $0.201; the cheapest quartile comes in under $0.113 . Anything below the median is a solid deal for the same molecule.
- How does VitaminDB rank Silica deals?
Deals are submitted by the community and ranked by net votes (hot minus cold) plus cost-per-dose normalised across container sizes. We take no affiliate kickbacks for ordering; sponsored slots, when present, are clearly badged.
Silica guides
Related minerals
References & sources
- Use of silicon for skin and hair care: an approach of chemical forms available and efficacy — PubMed Central, NIH National Library of Medicine
- USP Verified product participants — U.S. Pharmacopeia
- NSF certified products — NSF
We link primary sources and paraphrase their findings — never copy their text, tables, or images. Cost-per-dose figures are our own first-party catalog data.